080B0000

Safety Input Error

Omron · NJ/NX-series Machine Automation Controller

What does 080B0000 mean?

One or both of the photocouplers for safety inputs 1 and 2 have transitioned to an OFF state, triggering a safety error. This typically indicates an issue with the safety circuit integrity, such as a physical cable problem.

Common Causes

  • Safety input cable for inputs 1 or 2 is disconnected
  • Safety input cable for inputs 1 or 2 is broken

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Visually inspect the cables connected to safety inputs 1 and 2 for physical damage or disconnections.

  2. 2

    Measure continuity of the safety input cables for inputs 1 and 2.

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Verified technical data. Last updated: March 2026

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Source: Omron NJ/NX-series Machine Automation Controller